On the February 22 airing of KBS 2TV's 'Entertainment Weekly,' Block B'sP.O. talked about his ongoing friendship with 'Boyfriend' co-star Park Bo Gum.

P.O. shared, "Bo Gum is the same age as me but he is sunbae (in acting). He was very kind and tried hard to make it comfortable for me."

The two stars continued to keep in touch even after the drama. P.O. said, "We text each other and we're thinking about adjusting our time and going on a trip together." P.O. added, "He also promised to come to watch my show (the play 'Boy Goes to Heaven')."